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Table 2 Study characteristics and outcomes

From: Association of the androgens with COVID-19 prognostic outcomes: a systematic review

First author, year

Country

Study design

Sample size

Age, years

Population

BMI groups and number of cycles

Blood test index

Outcomes

Çayan,

2020

Turkey

prospective cohort study

438

(43–57)

COVID-19 male and female patients

divided into three groups according to asymptomatic, symptomatic IMU hospitalization, and ICU hospitalization.

TT, FSH, LH, prolactin, estrogen; biochemical indicators

ICU admission, and length of hospital stay

Salciccia, 2020

Italy

cohort study

29

(23–90)

COVID-19 male patients

Groups were assigned according to the need for invasive oxygen assistance.

Complete blood count; TT; biochemical indicators

Invasive oxygen assistance

Camici, 2021

Italy

case-control study

48

(18–65)

COVID-19 male patients

24 patients with severe pneumonia in case group; mild COVID-19 in control group

Sex hormone on admission; Markers of systemic inflammation

Presence of hyperinflammatory syndrome; Percentage of damaged lung volume; Length of hospital stay; Time to swab clearance; Time to death

Infante, 2021

Italy

case-control study

59

(38–89)

COVID-19 male patients

two groups: survivors and non-survivors.

TT, estrogen progesterone, prolactin

ICU admission; coagulation and Sepsis; hospital mortality

Karkin, 2021

Turkey

prospective cohort study

70

(20-over 60)

COVID-19 male patients

divided according to the need for intensive care

TT

ICU admission

Salciccia, 2021

Italy

cohort study

25

(41–78)

COVID-19 male patients

stratified according to impaired TT levels at the moment of hospital admission

TT; complete blood count; biochemical indicators

Viral positivity durations

Salonia, 2021

Italy

case-control study

567

(49–66)

COVID-19 male patients; healthy men

divided into four groups according to the severity of COVID-19

FSH, LH, TT, estrogen; biochemical indicators

ICU admission; death

Schroeder, 2021

Germany

retrospective cohort study

92

(58–82)

SARS-CoV-2 positive and negative patients

admitted to the Department of Intensive Care Medicine

TT

ARDS; mechanical ventilation; ICU stay

van Zeggeren, 2021

the Netherlands

case-control study

40

(63–78)

Amsterdam UMC COVID-19 Biobank patients

consisting of postmenopausal women and age-matched men, with a mortality of 50% in each group

estradiol; TT; SHBG

ICU admission; Invasive ventilation; Deceased

Apaydin, 2022

Turkey

cohort study

81

(22–60)

COVID-19 male patients

divided patients into low and normal testosterone groups

FSH; LH; SHBG; TT

Duration of hospitalization; ICU admission

Cinislioglu, 2022

Turkey

prospective cohort study

450

(25–91)

COVID-19 male patients; non-COVID-19 patients

divided into mild/moderate and severe groups

TT, FSH, LH

lung involvement; ICU admission; death

Marinelli, 2022

Italy

prospective, multicentric study

35

(58–74)

COVID-19 male patients

two groups: alive and dead

hormonal profile; inflammatory/biochemical profile

CPAP use; hospitalization time; in-hospital mortality rate

Toscano‑Guerra, 2022

Spain

retrospective cohort study

497

(56–71)

COVID-19 male and female patients

classified as mild, moderate, severe-survivor, and severe-deceased

TT; biochemical and hematological parameters

severity; death

Vena, 2022

Italy

cohort study

221

(26–93)

COVID-19 male patients

Subgroups by serum total testosterone values

TT

Respiratory outcomes; In‑hospital mortality

Yeap, 2022

Australia

prospective cohort study

159,964

(40–69)

community-dwelling adults

5558 were infected with SARS-CoV-2, with 438 deaths from COVID-19

TT; SHBG

Deaths related to COVID-19;

Zheng, 2022

China

cohort study

61

(37–74)

COVID-19 male patients

classified as ICU and non-ICU groups

TT; laboratory indicators

PSI; disease severity

  1. ARDS, acute respiratory distress syndrome; COVID-19, coronavirus disease 2019; CPAP, continuous positive airway pressure; FSH, follicle-stimulating hormone; IMU, internal medicine unit; ICU, intensive care unit; LH, luteinizing hormone; PSI, pneumonia severity index; SARS-CoV-2, severe acute respiratory syndrome coronavirus 2; SHBG, sex hormone binding globulin; TT, total testosterone